Question Detail
Question
Ovulation marks the completion of ___ and the formation of a ___: a. meiosis II, secondary oocyte b. meiosis I, primary oocyte c. meiosis II, secondary oocyte d. meiosis I, secondary oocyte
Correct Answer
Option D is the correct answer.
Detailed Explanation
Ovulation is the release of the secondary oocyte from the ovary. This event occurs after the completion of meiosis I. The primary oocyte completes meiosis I, producing a secondary oocyte and a polar body. The secondary oocyte then begins meiosis II but arrests at metaphase II. So, ovulation marks the completion of meiosis I and the formation of a secondary oocyte.
Hint
At ovulation, the egg has finished its first division and is now called a secondary oocyte.